Home / 158,838.28-238,187.45-74,622.38

Finding the Fourth Proportional to 158,838.28, 238,187.45 and 74,622.38

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Solution

The fourth proportional to 158,838.28, 238,187.45 and 74,622.38 is: 111,900.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,838.28 : 238,187.45 = 74,622.38 : x
  2. Step 2: Convert to fraction form
    158,838.28/238,187.45 = 74,622.38/x
  3. Step 3: Cross multiply
    158,838.28x = 238,187.45 × 74,622.38
  4. Step 4: Simplify right side
    158,838.28x = 17,774,113,400.75
  5. Step 5: Solve for x
    x = 17,774,113,400.75/158,838.28
  6. Step 6: Final answer
    x = 111,900.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.